Divisibility Rules

Divisibility Rules

In order for a # to be divisible by

2, it must end with an even number. Ex. 2 , 10 , 1, 358, 4064

3, the sum of its digits will be divisible by 3. Ex. 309 ; the sum of 3+9+0 = 12 801; the sum of 8+1 = 9 which is divisible by 3